Brown is now in concussion protocol for the week, meaning he must progress through steps of gradually increasing physical stress. The first step is rest and recovery, which prohibits the player from doing any strenuous activity. Players are also advised against using social media and computers, but it looks like Brown isn’t being bothered much.

The next step for Brown will be light aerobic exercise. The next step allows for strength training, with all action under the supervision of the team’s medical staff. The next step allows for football activities, but still prohibits contact with other players or tackling dummies. If there are any setbacks during these escalating workouts, the player remains at that step until symptoms subside.

After Brown is cleared by the Steelers medical staff, he will still need to be examined by an independent neurological consultant before he is cleared to play. The Steelers face the Broncos on Sunday at 4:40 p.m. Eastern.